for all cocharacters \(\lambda \)  of \(SG(d)\) , where, by abuse of notation, \(\langle \lambda , \mathcal {F}|_0\rangle \)  is the set of weights of \(\lambda \)  on
\(\mathcal {F}|_0\) , the restriction of \(\mathcal {F}\)  to the origin 0 in \(R(d)\) , see [1]}.
